Multiple Choice
In the southeastern U.S., two species of wild lettuce (Lactuca) do not usually form hybrids, because they bloom at different seasons.The means of isolation appears to be
A) postzygotic and behavioral.
B) prezygotic and temporal.
C) prezygotic and geographical.
D) prezygotic and mechanical.
Correct Answer:
Verified
Correct Answer:
Verified
Q29: When species are kept separate by preventing
Q30: In 1938, scientists found a population of
Q31: The hundreds of species of Drosophila in
Q32: Lake Victoria is famous for its variety
Q35: A type of isolating mechanism that leads
Q36: Which statement is true about speciation on
Q37: The type of speciation that results in
Q38: Once species have formed, they keep their
Q39: The model that assumes that evolution proceeds
Q49: Imagine two species of birds with similar